Kaka appears to be prepared to talk to Sheikh Mansour. Photograph: Paco Serinelli/AFP

Kaka is willing to meet Manchester City's owner, Sheikh Mansour, to discuss a potential move despite saying yesterday that he wanted to stay at Milan. City are willing to pay the Brazil midfielder £500,000 a week and he wants to hear the club's plans from the multibillionaire who took over in September before making a decision on his future.

His decision is likely to have implications for Robinho, who – according to sources close to the Premier League's most expensive player – is alarmed by City's poor results and had been promised there would be an influx of superstars.

Although Robinho is not thought to be considering his own position, the former Real Madrid player has been described as "unsettled" and has started to question how long it will be before City are in a position to challenge for trophies. His impression of Mark Hughes is understood to have deteriorated, partly because of the manager's problems with two of City's other Brazilians, Elano and Jo.

Robinho, it has been confirmed, played an instrumental part in trying to persuade Kaka, the subject of a bid in excess of £100m, to give up Milan for a club that is languishing 15th in the Premier League. City's executives travelled to Milan on Tuesday and had a favourable response from the Italian club.

Kaka said last night: "I am extremely happy here. I want to grow old at Milan.My aim is to become, at some point in the future, the captain of this team. I know there is a pecking order, with [Paolo] Maldini at the front and then [Massimo] Ambrosini, but after that ... I have already turned down some major offers."

Nonetheless City remain encouraged by Kaka not emphatically ruling it out and one individual involved in the deal described himself as "very confident". The 26-year-old Kaka went on to say it was Milan's decision and it is known the Serie A club is seriously considering accepting City's offer, leading one of Kaka's advisers to confirm it was "still possible" the deal could happen. "I can say that [a deal] could be done during the January transfer window," said Diogo Kotscho.

Robinho is understood to have given his compatriot a full run-down on the club and it is rumoured that Kaka's father, Bosco Leite, was recently a guest of City's billionaire owners in Abu Dhabi. If the deal does not happen this month, City intend to return for the player in the summer but the club also privately confirmed it is hopeful of smashing the world transfer record this month, insisting there is more to Kaka's words than first meets the eye.

"I will be here until they [Milan] want me here," he had stated. "As long as my aims are the same as the club's aims I would like to remain here. But if, one day, the club wishes to sell me, then it is a different issue altogether."